CVE-2026-28849: A maliciously crafted ZIP archive may bypass Gatekeeper checks in Apple macOS
The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5. A maliciously crafted ZIP archive may bypass Gatekeeper checks.
AI Analysis
Technical Summary
CVE-2026-28849 is a vulnerability in Apple macOS where a specially crafted ZIP archive may bypass Gatekeeper checks. Gatekeeper is a security feature that enforces code signing and verifies downloaded software before execution. The issue was resolved by Apple with improved validation checks in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8. The vulnerability does not affect confidentiality or availability but impacts integrity by allowing potentially malicious code to run without proper verification.
Potential Impact
The vulnerability allows an attacker to bypass Gatekeeper's security checks by using a malicious ZIP archive. This could lead to the execution of untrusted or malicious code on affected macOS systems, impacting system integrity. There is no impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8. Users and administrators should update affected macOS systems to these versions or later to remediate this vulnerability. No other mitigation guidance is provided or required beyond applying the official update.
CVE-2026-28849: A maliciously crafted ZIP archive may bypass Gatekeeper checks in Apple macOS
Description
The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5. A maliciously crafted ZIP archive may bypass Gatekeeper checks.
CVSS v3.1
Score 5.5medium
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-28849 is a vulnerability in Apple macOS where a specially crafted ZIP archive may bypass Gatekeeper checks. Gatekeeper is a security feature that enforces code signing and verifies downloaded software before execution. The issue was resolved by Apple with improved validation checks in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8. The vulnerability does not affect confidentiality or availability but impacts integrity by allowing potentially malicious code to run without proper verification.
Potential Impact
The vulnerability allows an attacker to bypass Gatekeeper's security checks by using a malicious ZIP archive. This could lead to the execution of untrusted or malicious code on affected macOS systems, impacting system integrity. There is no impact on confidentiality or availability according to the CVSS vector. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8. Users and administrators should update affected macOS systems to these versions or later to remediate this vulnerability. No other mitigation guidance is provided or required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.970Z
- State
- PUBLISHED
Threat ID: 6a67c1b19c2644c7f8cb0d61
Added to database: 07/27/2026, 20:38:09 UTC
Last enriched: 07/29/2026, 23:36:35 UTC
Last updated: 09/11/2026, 22:06:32 UTC
Views: 56
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